Term ends Sep 10, 2034 · Medium confidence
20-year base term ends Feb 25, 2033
Why Medium: A parent in the chain could not be resolved.
Held by C3S2 GmbH
Filed Dec 21, 2018 as application 16/231,193 · Granted Nov 5, 2024
Base term plus 562 days of patent term adjustment (USPTO delay)
Today
2013
2034
Clock starts
Feb 25, 2013
Feb 25, 2013
Term ends
Sep 10, 2034
Sep 10, 2034
Granted
Nov 5, 2024
Nov 5, 2024
base term
patent term adjustment
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
562
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
5
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
This patent's term runs 562 days past its 20-year base term on prosecution delay. 0 of 2 maintenance fees are paid so far. Confidence: Medium. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Feb 25, 2013, when application PCT/EP2013/053650, the earliest non-provisional in its chain, was filed (this one was filed Dec 21, 2018); a parent in its chain could not be resolved (the next row) | Feb 25, 2033 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +562 days, USPTO patent term adjustment record | Sep 10, 2034 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Sep 10, 2034 | Medium confidence |
This family
| US 10,228,312 | In force Feb 2033 | Feb 2033 |
| US 12,066,365 | In force Jun 2034 | Jun 2034 |
| US 12,135,265 | this patent Sep 2034 | Sep 2034 |
| Application 18/904,030 | Pending not computed | not computed |
4 of 5 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.
Assignments
Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Feb 8, 2019 Reel 48283, frame 310 | Stadler, Herbert, DR. | Stage Cell Therapeutics GmbH | Assignment of Assignor's Interest |
| Feb 8, 2019 Reel 48292, frame 612 | Stage Cell Therapeutics GmbH | Juno Therapeutics GmbH | Change of Name |
| Sep 15, 2025 Reel 72906, frame 617 | Juno Therapeutics GmbH | C3S2 GmbH | Change of Name |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Sep 2034
Term ends Sep 10, 2034. Maintenance fees still fall due before then
Note
The 562 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
9
later US patents cite this one
Fewer than half of the utility patents granted in 2024 in our data have been cited yet, so we show the count and do not rank on it.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.